Obesity remains a serious health problem and it is no secret that many people want to lose weight. Behavioral economists typically argue that “nudges” help individuals with various decisionmaking flaws to live longer, healthier, and better lives. In an article in the new issue of Regulation, Michael L. Marlow discusses how nudging by government differs from nudging by markets, and explains why market nudging is the more promising avenue for helping citizens to lose weight.

Two long wars, chronic deficits, the financial crisis, the costly drug war, the growth of executive power under Presidents Bush and Obama, and the revelations about NSA abuses, have given rise to a growing libertarian movement in our country – with a greater focus on individual liberty and less government power. David Boaz’s newly released The Libertarian Mind is a comprehensive guide to the history, philosophy, and growth of the libertarian movement, with incisive analyses of today’s most pressing issues and policies.

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Lehman’s Failure Taught Us Nothing

Several commentators have reacted to Senator McConnell’s floor statement regarding the Dodd bill as a defense of “doing nothing”. And accordingly argue that such a position would be, in the words of Simon Johnson, both dangerous and irresponsible. This familiar canard is based upon the oft repeated assertion that the failure of Lehman proved that we cannot simply let large financial companies enter bankruptcy.

The simple, but important, fact is that we have no idea what would have happened had we let AIG and Bear go into bankruptcy proceedings. Nor do we know what would have happened if Lehman had been saved. Macroeconomics does not have the luxury of running natural experiments to determine the impact of a corporate failure. Scholars have an obligation to accurately reflect the uncertainties in the debate. Those that assert Lehman proved anything, are being at best disingenuous, and at worst, dishonest.

Let us, however, put forth a few things we do know:

We know none of Lehman’s counterparties failed as a result of Lehman’s failures. Just as we know none of AIG”s counterparties would have failed if they did not get 100 cents on the dollar from their CDS positions. So where exactly is the proof of contagion?

We know we had a nasty housing bubble. We were going to lose millions of jobs in construction and real estate regardless of what we did. We knew financial institutions heavily invested in housing would suffer. How exactly would saving Lehman have prevented any of that?

The debate over ending bailouts and too-big-to-fail will not progress, we will not learn a thing, if we let simple, empty assertion pass as fact. Much of the public remains angry at Washington because those responsible, such as Bernanke and Geithner, have never laid out a believable or plausible narrative for the bailouts. It always comes back to “panic.” If we are ever to hope to return to being a country governed by the rule of law, rather than the whims of men, then we need a lot more of an explanation than “panic.”